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Leachate is a solutions, frequently highly contaminated,

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Leachate is a solutions, frequently highly contaminated, [#permalink] New post 06 Aug 2007, 13:02
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67% (02:56) correct 33% (00:57) wrong based on 5 sessions
Leachate is a solutions, frequently highly contaminated, that develops when water permeates a landfill site, If and only if the landfill's capacity to hold liquids is exceeded does the leachates escape into the environment, generally in unpredictable quantities, A method must be found for disposing of leachate. Most landfill leachate is send directly to sewage treatment plants, but not all sewage plants are capable of handling the highly contaminated water.

Which one of the following can be inferred from the passage?

(A) The ability to predict the volume of escaping landfill leachate would help solve the disposal problem.

(B)If any water permeates a landfill, leachate will escape into the environment.

(C) No sewage treatment plants are capable of handling leachate.

(D) Some landfill leachate is send to sewage treatment plants that are incapable of handling it.

(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded.

Can you deny D or E?
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 [#permalink] New post 06 Aug 2007, 13:10
E for sure
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 [#permalink] New post 06 Aug 2007, 13:47
It is between D and E. Finally picking E.
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 [#permalink] New post 06 Aug 2007, 14:03
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I was stuck between D and E but I think E is stronger.

(D) Some landfill leachate is send to sewage treatment plants that are incapable of handling it. even though there are plants that are incapable of handling leachate (as it was mentioned in the last sentence), it would be presumptuous of us to assume that the leachate are actually sent to those plants. Maybe leachates are only sent to sewage plants that can handle it. We cannot say.

(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded. as stated in the argument - "if and only if".
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 [#permalink] New post 06 Aug 2007, 14:14
beckee529 wrote:
I was stuck between D and E but I think E is stronger.

(D) Some landfill leachate is send to sewage treatment plants that are incapable of handling it. even though there are plants that are incapable of handling leachate (as it was mentioned in the last sentence), it would be presumptuous of us to assume that the leachate are actually sent to those plants. Maybe leachates are only sent to sewage plants that can handle it. We cannot say.

(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded. as stated in the argument - "if and only if".


Good analysis. I was stuck between D and E forever before figuring this out.
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 [#permalink] New post 06 Aug 2007, 15:29
I get E for this. the "if and only if" is pretty damning, so you need something equally strong.
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 [#permalink] New post 06 Aug 2007, 19:35
beckee529 wrote:
I was stuck between D and E but I think E is stronger.

(D) Some landfill leachate is send to sewage treatment plants that are incapable of handling it. even though there are plants that are incapable of handling leachate (as it was mentioned in the last sentence), it would be presumptuous of us to assume that the leachate are actually sent to those plants. Maybe leachates are only sent to sewage plants that can handle it. We cannot say.

(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded. as stated in the argument - "if and only if".


Agree with beckee529...E it is.
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 [#permalink] New post 06 Aug 2007, 20:03
agree with E

D is mild and has the possibility of sewage plans not receiving leachate at all
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 [#permalink] New post 08 Aug 2007, 01:46
IF AND ONLY IFF

If you negate one, you negate the other. It's written right there.

E
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 [#permalink] New post 08 Aug 2007, 08:47
I go with answer E.
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 [#permalink] New post 08 Aug 2007, 09:04
I agree with E...but I want to play devil's advocate here for a second.

Quote:
(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded.


Can we assume that it is impossible for the landfill's capacty to hold liquids to be exceeded without leachate being produced? The passage never says anything concrete to prove this.

It's implied, but can we really know for sure? Leachate develops when water permeates a landfill site....but what if a landfill site's capacity to hold liquids could be exceeded without water permeating it? maybe someone poured a whole ton of milk into the landfill. Then the landfill could exceed capacity without leachate being leaked...because it was never formed.

but D is an even weaker answer, so I'd choose E.
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Re: CR - Leachate is a solution [#permalink] New post 12 Aug 2007, 00:34
asaf wrote:
Leachate is a solutions, frequently highly contaminated, that develops when water permeates a landfill site, If and only if the landfill's capacity to hold liquids is exceeded does the leachates escape into the environment, generally in unpredictable quantities, A method must be found for disposing of leachate. Most landfill leachate is send directly to sewage treatment plants, but not all sewage plants are capable of handling the highly contaminated water.

Which one of the following can be inferred from the passage?

(A) The ability to predict the volume of escaping landfill leachate would help solve the disposal problem.

(B)If any water permeates a landfill, leachate will escape into the environment.

(C) No sewage treatment plants are capable of handling leachate.

(D) Some landfill leachate is send to sewage treatment plants that are incapable of handling it.

(E) If leachate does not escape from a landfill into the environment, then the landfill's capacity to hold liquids has not been exceeded.

Can you deny D or E?


Before the thread gets lost, can you please provide us with the OA? Thanks!
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Re: Leachate is a solutions, frequently highly contaminated, [#permalink] New post 22 Nov 2013, 09:48
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Re: Leachate is a solutions, frequently highly contaminated,   [#permalink] 22 Nov 2013, 09:48
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